A new method for calculation of fracture propagation

She Chengxue

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A new method for calculation of fracture propagation

更新时间：2026-06-25

- A new method for calculation of fracture propagation
- Vol. 21, Issue 2, (2000)
- 作者机构：
  
  武汉水利电力大学水电系,湖北,武汉,430072
- 作者简介：
- 基金信息：
- DOI：
  CLC： TD32
- Online First：12 December 2016，
  
  Published：2000
- 稿件说明：
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She Chengxue. A new method for calculation of fracture propagation[J]. 2000, 21(2).
DOI：

She Chengxue. A new method for calculation of fracture propagation[J]. 2000, 21(2). DOI：

摘要

利用单元中嵌合无厚度不连续面的方法

模拟断裂面的形成过程。用虚功原理建立包含断裂面影响的有限元平衡方程；利用余虚功原理推导了断裂面的矩阵的具体形式；以第一类断裂问题 -开裂问题为例，建立了开裂面粘塑性开裂本构关系，进一步得到了以弹粘塑性形式表示的有限元计算格式。通过简单算例证明了该方法的正确性。

Abstract

The embedded softening surface is used to simulate the propagation of fracture in rocks. Based upon the virtual work principle

the equilibrium equations of FEM considering the effect of fracture on deformation are established. And on the basis of the complement virtual work principle

the concrete matrix for the effect of fracture is deduced. As an example

the first type of fracture-cracking problem is analyzed to develop the visco-plastic constitutive relationship on crack surfaces

the visco-plastic FEM calculation procedure is then obtained. Finally

an example is simply calculated to demonstrate the rationality of the proposed method.

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Related Institution

School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University

Changjiang Institute of Survey, Planning, Design and Research

State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University

Faculty of Engineering, China University of Geosciences

Chongqing Communications Research and Design Institute

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